908 Devices (MASS) Insider Trading & Ownership $7.10 +0.12 (+1.72%) Closing price 06/10/2025 04:00 PM EasternExtended Trading$7.01 -0.09 (-1.28%) As of 07:00 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock 908 Devices (NASDAQ:MASS) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage23.70%Number OfInsiders Buying(Last 12 Months)1Amount OfInsider Buying(Last 12 Months)$42.90KNumber OfInsiders Selling(Last 12 Months)2Amount OfInsider Selling(Last 12 Months)$95.62K Get MASS Insider Trade Alerts Want to know when executives and insiders are buying or selling 908 Devices stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address MASS Insider Buying and Selling by Quarter 908 Devices Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame * Start Date * End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails6/4/2025Joseph H Iv GriffithCFOSell6,940$7.08$49,135.20 5/14/2025Mark SpotoDirectorBuy10,000$4.29$42,900.00 2/3/2025Joseph H Iv GriffithCFOSell10,236$2.34$23,952.24 2/3/2025Michael S TurnerInsiderSell9,672$2.33$22,535.76 (Data available from 1/1/2013 forward) MASS Insider Trading Activity - Frequently Asked Questions Who is on 908 Devices's Insider Roster? The list of insiders at 908 Devices includes Christopher D Brown, Joseph H Iv Griffith, Kevin J Knopp, Mark Spoto, Michael S Turner. Learn more on insiders at MASS. What percentage of 908 Devices stock is owned by insiders? 23.70% of 908 Devices stock is owned by insiders. Learn more on MASS's insider holdings. Which 908 Devices insiders have been buying company stock? The following insiders have purchased MASS shares in the last 24 months: Kevin J Knopp ($178,500.00), and Mark Spoto ($42,900.00). How much insider buying is happening at 908 Devices? Insiders have purchased a total of 40,000 MASS shares in the last 24 months for a total of $221,400.00 bought. Which 908 Devices insiders have been selling company stock? The following insiders have sold MASS shares in the last 24 months: Christopher D Brown ($134,361.00), Joseph H Iv Griffith ($163,639.84), Kevin J Knopp ($63,497.00), and Michael S Turner ($59,107.44). How much insider selling is happening at 908 Devices? Insiders have sold a total of 67,194 908 Devices shares in the last 24 months for a total of $420,605.28 sold. 908 Devices Key ExecutivesDr. Kevin J. Knopp Ph.D. (Age 51)Co-Founder, CEO, President & Director Compensation: $761.12kMr. Joseph H. Griffith IV (Age 49)CFO & Treasurer Compensation: $491.89kMr. Michael S. Turner Esq. (Age 57)J.D., Chief Legal & Administrative Officer and Secretary Compensation: $470.65k1 recent tradesDr. Christopher David Brown Ph.D. (Age 49)Co-Founder, Chief Product Officer & Co-Chair of Scientific Advisory Board Compensation: $459.7kMr. Steve AraizaCo-FounderMr. Andrew BartfayCo-Founder & Director of Hardware DevelopmentMr. Michael JobinCo-Founder & Director of Product DevelopmentDr. Scott Miller Ph.D.Co-Founder & Director of MS EngineeringMs. Barbara Russo (Age 61)Vice President of Marketing & Corporate Communications Mr. Don Osmer (Age 58)Vice President of Human Resources More Insider Trading Tools from MarketBeat Related Companies Transcat Insider Trades Allient Insider Trades EyePoint Pharmaceuticals Insider Trades Standard BioTools Insider Trades Cytek Biosciences Insider Trades Senseonics Insider Trades Quantum-Si Insider Trades Aehr Test Systems Insider Trades Quanterix Insider Trades Frequency Electronics Insider Trades Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles 3 Tightly-Held Growth Stocks Set Up for Short SqueezesTankers, Takedowns & Air Taxis: Insiders Are Buying These 3 Names3 Tech Stocks Insiders Are Buying: Speculative Plays for JuneDividend Investors Looking for an Edge? 3 Stocks Insiders BoughtMeta's Institutional & Insider Data Fuels Bulls Despite Disparity This page (NASDAQ:MASS) was last updated on 6/11/2025 by MarketBeat.com Staff From Our PartnersTrump wipes out trillions overnight…Is there anybody more powerful than Donald Trump right now? 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